Universal Binaries

[Joshua Root]

Timothy Lee wrote:
> 
> On Jan 24, 2009, at 3:36 AM, Ryan Schmidt wrote:
> 
>> On Jan 23, 2009, at 09:11, <timlee at rochester.rr.com>
>> <timlee at rochester.rr.com> wrote:
>>
>>> Joshua Root <jmr at macports.org> wrote:
>>>> Timothy Lee wrote:
>>>>> Do you know if its possible for me (on leopard) to build x86 code (all
>>>>> my macports ports) that will also run on Tiger?
>>>>> Short of physical access to an intel 10.4 install, is there anything I
>>>>> can do?
>>>>
>>>> Don't forget to use Reply All so the discussion goes to the list as
>>>> well. There are no guarantees that this will work, but the way to do
>>>> what you want would be to set universal_target to 10.4,
>>>> universal_sysroot to /Developer/SDKs/MacOSX10.4u.sdk, and
>>>> universal_archs to i386. Then build everything with +universal (best to
>>>> add it to your variants.conf).
>>
>> Also set x11prefix to /usr/X11R6; Leopard's X11 prefix /usr/X11 does
>> not exist on Tiger.
>>
> 
> If I do this, how will I be able to run the executables on my 10.5 setup?

There's a symlink on at least some Leopard installs. If you don't have
one, make one.

- Josh